Conditional Fields

Define dependencies between fields based on their states and values.

Conditional Fields for Drupal 7 is an user interface to the new States API, plus the ability to modify fields appearance and behavior on certain conditions when viewing content.

Description

Conditional Fields allows you to manage sets of dependencies between fields. When a field is “dependent”, it will only be available for editing and displayed if the state of the “dependee” field matches the right condition.
When editing a node (or any other entity type that supports fields, like users and categories), the dependent fields are dynamically modified with the States API.
A simple use case would be defining a custom “Article teaser" field that is shown only if a "Has teaser" checkbox is checked, but much more complex options are available.

Installation and Usage

Please read the Conditional Fields documentation for Drupal 7, or the Conditional Fields documentation for Drupal 8.

Requirements

Drupal 7 version 7.14 or higher is required.

Notes

• Supported dependee fields are for now only core fields. That is: select, checkbox, radio and text. Other field types might work but are not supported. Follow this issue for ongoing development.

Similar Modules

• Business Rules: The Dependent Fields component of that module appears to overlap with this one. Do we still need both modules? Let's figure it out in #2913096: Business Rules module's "Dependent fields" feature: overlap discussion and its related issues. Basically, we're waiting for someone to do a thorough comparison.

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